LM4128BQ1MF4.1/NOPB

Voltage Reference Overview

The LM4128BQ1MF4.1/NOPB is an automotive-grade series precision voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 4.096 V with an initial accuracy of 0.2%. The device operates within a supply voltage range up to 6 V and supports a maximum shunt current of 20 mA. It features a temperature coefficient of 100 PPM/°C and consumes 60 µA of quiescent current. Qualified under AEC-Q100 standards, it functions reliably between -40°C and +125°C. The component is housed in a compact SOT-23-5 surface-mount package.

Voltage Reference Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability
• High precision series reference architecture ensuring stable output
• Low power consumption suitable for battery-operated systems
• Extended industrial temperature range operation capability

Voltage Reference Applications

• Automotive data acquisition systems
• Precision analog-to-digital converter references
• Battery-powered measurement instrumentation
• Medical equipment signal conditioning

Voltage Reference Procurement Notes

Verify the specific suffix 'MF4.1' corresponds to the required tape-and-reel packaging configuration. Confirm that the 0.2% initial accuracy grade meets the design tolerance requirements. Ensure the AEC-Q100 qualification aligns with the target automotive application's reliability specifications. Check for RoHS compliance status if environmental regulations apply to the manufacturing process.

Voltage Reference Selection Notes

Select this component when a 4.096 V reference with tight 0.2% accuracy is required in an automotive environment. Compare against LM4128AQ1 variants if higher 0.1% accuracy is needed, or LM4128DQ1 variants if relaxed 1% accuracy suffices. Consider the SOT-23-5 footprint constraints and the 6 V maximum input voltage limit during circuit design.

Voltage Reference Part Context

This part belongs to the LM4128 family of shunt voltage references designed for high-precision applications. The 'B' designation indicates the 0.2% accuracy bin, while 'Q1' signifies automotive qualification. The 'MF4.1' suffix typically denotes the specific reel packaging format. It serves as a stable reference source for ADCs and DACs in demanding environments.

Voltage Reference Replacement Considerations

LM4128AQ1MF4.1/NOPB offers improved 0.1% accuracy. LM4128DQ1MF4.1/NOPB provides relaxed 1% accuracy. LM4128BQ1MFX4.1/NOPB differs only in bulk reel packaging quantity.